Velocipede fork-crown



Patented May 2, |899. l F. A. 600K. VELOGIPEDE-FDHK CROWN.

(Application filed Nov. 22, 1897.)V

2 Sheets-Sheet I.

(No Mudel.)

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if @Zw XM of No. 624,|a2. Patent-ed May 2, |899. F. A. cook.

VE'LOCIPEDE FORK CROWN.

(Application filed Nov. 22, 1897.)

(No Model.) 2 Sheets-*Sheet 2.

Wit/265565.' [law/war: WMM 53% @iM Nrrn STATES FRANK A. COOK, OF EAST HARTFORD, CONNECTICUT.

VELOCIPEDE FORK-CROWN.

SPECIFICATION forming part of Letters Patent No.' 624,182, dated May 2, 1899.

Application iledNovemher 22, 1897. Serial No. 659,387. (No model.)

T0 all whom it may concern:

Be itknownthatLFRANK A.COOK,acitizen of the United States, and a resident of East Hartford, in the county of I-Iartford and State` details of the several parts making up the fork-crown as a whole and the combination of the parts, as hereinafter described, and more particularly pointed out in the claims.

Referring to the drawings, Figure lis atop or plan View of a fork-crown embodying my invention. Fig. 2 is a View in vertical central section through the fork-crown on plane denoted by the dotted line x Fig. 3 is a view in vertical central section of the fork-crown on plane denoted by the dotted line'g/ y. Fig. Ll is a detail view, in side elevation, of the completed fork-crown. Fig. 5 is a detail view, in front elevation, of the same. Fig. 6 is a detail View, in lengthwise section, through the hood. Fig. 7 is a detail viewin cross-section through the same. Fig. S is a detail View, in length- Wise section, through the body part. Fig. 9 is a detail View in cross-section through the same. Figfl() is a detail top view Of the same.

Fig. 1l shows the thimble in central section and in plan view. 1 Fig. l2 is a view of the blank froinwhich the plug is formed, and Fig. 13 shows in side and end view the plug.

The fork-crown in which my improvement is embodied is of the kind known as a builtup or skeleton7 crown, and in the accompanying drawings the letters Ct b denote the forks, usually made of tubes, and in the open upper ends of each of these fork-tubes I may insert a plug c, which is a cup-shaped piece drawn to shape somewhat in the'Well-known manner of making a cartridge-shell, although this plug is not necessary to the construction. These plugs when used are tightly fitted into the upper ends of the fork-tubes and form a reinforce, being secured in place by the final brazing of the parts together.

The fork-crown is made up of a central body part d and a hood e. The former is made of sheet metal, with the outer flange d of a height and shape adapting it to it against the outer surface of the inner side of the upperend of the fork-tube,whichis usually oval in cross-section, and the flange (Z2, also turned up from the lioor of this body part, is of cylindrical outline, adapted to lit closely upon the lower end of the steering-head tube f. The hood has'a central circular ,opening for the passage of this steering-head tube f and a iange e' upturned a short distance from the top as a means of securing a firmer contact between this hood and the steering-head tube f. The hood as a whole is cup-shaped, with the [lange or side part e2 extending completely about the body part CZ of the hood, and also surrounding the upper ends of the fork-tubes d and Z). At the sides this flange has eXtensions eg, which project downward along the ontersides of the fork-tubes, as shown in Figs. 4 and 5 of the drawings, and serve as a brace to give additional strength at these points. A thimble or spacer g may be used in the cavity or recess between the hood and the wall of the body part, the walls being somewhat of conical form to closely embrace the flange d2 on the bodypart, and also near its upper end the steering-head tube f. The space left between the inner surface of this thimble g and the outer surface of this steering-head tube f is lled with spelterin the brazing operation, and the several separate component parts of this fork-h ead,the steering-head tube,and the upper ends of the fork-tube are secured t0- gether by the brazing, which extends into the spaces where indicated by the heavy black outline, as shown in Figs. 2 and 3 of the drawings.

I claim as my inventionl. In combination with a steering-head tube, the fork-tubes, a sectional fork-crown made up of sheet metal comprising a Hoor-section secured to the steering-head tube', a hood having a peripheral flange inclosing the floor-section and fork ends and with extensions along the outer sides of the fork ends, the capped reinforce in each fork-tube end, and a cylindrical thimble surrounding the steering-head IOO tube and the central Harige on the floor-seol a cylindrical thimble surrounding the steer*- tion, al1 substantially as described. ing-head tube and central ange on the floor- 2. In combination Withasteering-head tube section, al1 substantially as described. and fork-tubes, a sectional fork-crown com- FRANK A. COOK. 5 prising a floor-section secured to the steering- Vitnesses:

head tube, a hood having a peripheral ange C. L. BURDETT,

iuclosing the floor-'section and fork ends, and FELTON PARKER. 

